Breathing and Exchange of GasesHard

Question

Carbon dioxide is transported from tissues to respiratory surface by only

Options

A.plasma and erythrocytes
B.plasma
C.erythrocytes
D.erythrocytes and leucocytes

Solution

Carbon dioxide transportation by blood is much easier than oxygen due to high solubility of CO2 in water. During transport of CO2, 7% of CO2 is dissolved in plasma, 23 % as carbaminohaemoglobin and 70 % transported as bicarbonates (HCO3-)

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